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https://issues.apache.org/jira/browse/RNG-19?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16920545#comment-16920545
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Gilles commented on RNG-19:
---------------------------
I'm now wondering whether we should prefer this:
{code:java}
public final class JDKRandomWrapper extends IntProvider {
// ...
}
{code}
with the same implementation as
[{{JDKRandom}}|https://gitbox.apache.org/repos/asf?p=commons-rng.git;a=blob;f=commons-rng-core/src/main/java/org/apache/commons/rng/core/source32/JDKRandom.java].
This entails fuller integration within the "Commons RNG" framework (derived
types generation, cache, save/restore) and would make it the complement of
[{{JDKRandomBridge}}|https://gitbox.apache.org/repos/asf?p=commons-rng.git;a=blob;f=commons-rng-simple/src/main/java/org/apache/commons/rng/simple/JDKRandomBridge.java]:
* {{JDKRandomBridge}}:
** Source of randomness = Commons RNG
** API (and functionality) = JDK
* {{JDKRandomWrapper}}:
** Source of randomness = JDK
** API (and functionality) = Commons RNG
Of course, in that case, some of the tested expectations will not pass, e.g. a
"wrapped" instance will not produce the same derived types as a non-wrapped
one. [Maybe "Wrapper" is not the appropriate name.]
Also, users should be warned that the wrapped object should not be accessed
otherwise (e.g. after restore, the "delegate" will be a different object);
recommended usage pattern would be, for example:
{code:java}
UniformRandomProvider rng = new
JDKRandomWrapper(SecureRandom.getInstance("NativePRNGNonBlocking"));
{code}
> System generator (/dev/random)
> ------------------------------
>
> Key: RNG-19
> URL: https://issues.apache.org/jira/browse/RNG-19
> Project: Commons RNG
> Issue Type: Wish
> Reporter: Emmanuel Bourg
> Priority: Minor
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Commons RNG could include a random number generator based on the output of
> /dev/random or /dev/urandom on Unix systems.
> Commons Crypto has an implementation that could be used as a starting point:
> https://github.com/apache/commons-crypto/blob/master/src/main/java/org/apache/commons/crypto/random/OsCryptoRandom.java
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